Chemical reactors for pressure applications are often made in Borosilikat Glass 3.3 and glass lined steel for limited pressures, for higher pressure in stainless steel, different alloys like Hastelloy, Inconel or Monel, Titanium, Nickel, Tantalum, Zirconium.

Chemical reactors for vacuum application applications are typically made of Borosilicate Glass 3.3 and glass lined steel, sometimes in combination with glass distillation overheads in stainless steel, or Hastelloy.

Process equipment for vacuum distillation in production scale are built with glass lined reactors and a glass distillation overheads. All components like distillation column and piping are made in glass, feed vessels and receiving vessels in glass or glass lined steel, the condensers in glass, sometimes in combination with silicon carbide (SiC).

The chemical resistance against water , many chemical substances and pharmaceutical products (hydrolytic class 1) is explained by the high content of Bor. Reaction vessels made of Borosilicate glass suit perfectly to the requirements for use in chemical research labs, as well as Pilot Plants and kilolabs for small to mid scale productions in the pharmaceutical industry.

Safety with glass equipment:Design is according to AD 2000 Merkblatt and PED (Pressure equipment directive) for use of our glass equipment and vacuum as well for glass reactors under pressure. Tightness, safety, reliability as well as short down times for cleaning and product changes are of major importance. Our reaction systems provide operator safety and safe processes due to several factors as the consequent use of flexible glass connections. Our unique glass connection stays flexible under operation condition and therefore free from mechanical forces. It can even compensate material expansions from other materials connected with more important expansion characteristics during heating and cooling, without the use of unsafe and hardly cleanable compensators.

Glass lined steel or enamelled steel reactors with glass column / glass cover:Buchi reactors are built in a combination of the bottom part in glass lined steel with heating/cooling jacket in the bottom and a glass cylinder or glass cover on the top to visually observe the chemical reaction. Both materials of construction are inert and corrosion resistant and the glass lined steel Bottom heating features an excellent thermal transfer.

Buchi Reactors for Pilot Plants and kilo labsThese reactor systems in reactor volumes of 15 – 250 liters are mostly used for as multipurpose units. Due to this it is important to use chemically inert materials like glass, glass lines steel, PTFE or Teflon. There are reasons to combine glass distillation overheads also with reactors in different materials: For better heat transfer (with less corrosion resistance), the reactor may be built in Hastelloy, or in stainless steel in case of processing caustic solutions with less corrosion resistance on the acidic side. Other reasons of using Hastelloy or stainless steel reactors instead of our standard glass lined steel / glass reactors may be the operation on higher pressures, followed by vacuum distillation after the pressure reaction.